Yellowstone National Park stretches over an area of around 3,468.4 square miles largely over northwest Wyoming but also sneaks into Montana and Idaho in the western United States, particularly known for its wildlife and geothermal features such as the Old Faithful geyser.

President Ulysses S. Grant signed into law and established the magnificent park, which shapes the very first national park in the US as well as worldwide, by means of the Act of Dedication on 1 March 1872.

It is actually larger than the states of Delaware or Rhode Island and comprises lakes, canyons, rivers and mountain ranges lying at an altitude of about 2470m (8104ft).